 (function (doc, win) {
	  			var docEl = doc.documentElement;
	  			var resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize';
	  			var recalc = function () {
	    		var clientWidth = docEl.clientWidth;
	    		if (!clientWidth) return;
	    			docEl.style.fontSize = (clientWidth / 320 * 10).toFixed(1) + 'px';
	  			};
	  				recalc();
	  			if (!doc.addEventListener) return;
	  				win.addEventListener(resizeEvt, recalc, false);
					})(document, window);